/*
* Copyright (c) 2006-2007 Erin Catto http:
*
* This software is provided 'as-is', without any express or implied
* warranty.  In no event will the authors be held liable for any damages
* arising from the use of this software.
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
* 2. Altered source versions must be plainly marked, and must not be
* misrepresented the original software.
* 3. This notice may not be removed or altered from any source distribution.
*/
// var b2NullContact = Class.create();
// Object.extend(b2NullContact.prototype, b2Contact.prototype);
// Object.extend(b2NullContact.prototype,
import b2Contact from './b2Contact';
import b2ContactNode from './b2ContactNode';
import b2Math from './../../common/math/b2Math';
export default class b2NullContact extends b2Contact {
    constructor(s1, s2) {
        super(s1, s2);
        // The constructor for b2Contact
        // initialize instance variables for references
        this.m_node1 = new b2ContactNode();
        this.m_node2 = new b2ContactNode();
        //
        this.m_flags = 0;
        if (!s1 || !s2) {
            this.m_shape1 = null;
            this.m_shape2 = null;
            return;
        }
        this.m_shape1 = s1;
        this.m_shape2 = s2;
        this.m_manifoldCount = 0;
        this.m_friction = Math.sqrt(this.m_shape1.m_friction * this.m_shape2.m_friction);
        this.m_restitution = b2Math.b2Max(this.m_shape1.m_restitution, this.m_shape2.m_restitution);
        this.m_prev = null;
        this.m_next = null;
        this.m_node1.contact = null;
        this.m_node1.prev = null;
        this.m_node1.next = null;
        this.m_node1.other = null;
        this.m_node2.contact = null;
        this.m_node2.prev = null;
        this.m_node2.next = null;
        this.m_node2.other = null;
    }
    Evaluate() { }
    GetManifolds() { return null; }
}
